Overview
The ADAU1372BCPZ is a low-power codec designed by Analog Devices Inc. This component is optimized for low latency and low power consumption, making it ideal for use in headsets, handsets, and headphones. The ADAU1372 incorporates four single-ended analog inputs, configurable as microphone or line inputs, and two outputs. It also features built-in programmable gain amplifiers (PGAs), asynchronous sample rate converters (ASRCs), and supports serial port sample rates from 8 kHz to 192 kHz. With its versatile control interfaces, including I2C and SPI, the ADAU1372 provides a comprehensive solution for various audio applications with minimal external components.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| ADC Resolution | 24-bit | |
| DAC Resolution | 24-bit | |
| Signal-to-Noise Ratio (SNR) | Through PGA and ADC with A-weighted filter | 102 dB |
| Dynamic Range | Through DAC and headphone with A-weighted filter | 107 dB |
| Sample Rates | Serial port sample rates | 8 kHz to 192 kHz |
| Analog Inputs | Single-ended analog inputs | 4 (configurable as microphone or line inputs) |
| Digital Microphone Inputs | Dual stereo digital microphone inputs | |
| Analog Outputs | Stereo analog audio output | Single-ended or differential, configurable as line output or headphone driver |
| Power Supplies | Analog and digital input/output voltage | 1.8 V to 3.3 V |
| Control Interfaces | I2C and SPI | |
| Latency | Analog-to-serial port latency | 130 μs at fS = 48 kHz |
| PLL Clock Rate | Input clock rate supported by PLL | 8 MHz to 27 MHz |
Key Features
- Low latency, 24-bit ADCs and DACs
- 102 dB SNR (through PGA and ADC with A-weighted filter)
- 107 dB dynamic range (through DAC and headphone with A-weighted filter)
- Serial port sample rates from 8 kHz to 192 kHz
- 4 single-ended analog inputs, configurable as microphone or line inputs
- Dual stereo digital microphone inputs
- Stereo analog audio output, single-ended or differential, configurable as either line output or headphone driver
- PLL supporting any input clock rate from 8 MHz to 27 MHz
- Full-duplex, asynchronous sample rate converters (ASRCs)
- Power supplies: Analog and digital input/output of 1.8 V to 3.3 V
- I2C and SPI control interfaces for flexibility
- 5 multi-function pins supporting dual stereo digital microphone inputs, mute, push-button volume controls
Applications
- Handsets, headsets, and headphones
- Bluetooth handsets, headsets, and headphones
- Personal navigation devices
- Digital still and video cameras
Q & A
- What is the ADAU1372BCPZ optimized for?
The ADAU1372BCPZ is optimized for low latency and low power consumption.
- What are the key applications of the ADAU1372BCPZ?
The key applications include handsets, headsets, headphones, Bluetooth devices, personal navigation devices, and digital still and video cameras.
- What is the resolution of the ADCs and DACs in the ADAU1372BCPZ?
The ADCs and DACs are 24-bit resolution.
- What is the signal-to-noise ratio (SNR) of the ADAU1372BCPZ?
The SNR is 102 dB through PGA and ADC with an A-weighted filter.
- What is the dynamic range of the ADAU1372BCPZ?
The dynamic range is 107 dB through DAC and headphone with an A-weighted filter.
- What are the supported sample rates for the serial port?
The serial port supports sample rates from 8 kHz to 192 kHz.
- How many analog inputs does the ADAU1372BCPZ have?
The ADAU1372BCPZ has 4 single-ended analog inputs, configurable as microphone or line inputs.
- What control interfaces does the ADAU1372BCPZ support?
The ADAU1372BCPZ supports I2C and SPI control interfaces.
- What is the latency of the ADAU1372BCPZ?
The analog-to-serial port latency is 130 μs at fS = 48 kHz.
- What is the power supply range for the ADAU1372BCPZ?
The power supply range is 1.8 V to 3.3 V for both analog and digital input/output.
